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Nanoalumina supported palladium(0) nanoparticle catalyst for releasing H-2 from dimethylamine borane
Date
2019-09-01
Author
KARABOĞA, SEDA
Özkar, Saim
Metadata
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Palladium(II) 2,4-pentanedionate, impregnated on alumina nanopowder, was reduced by dimethylamine borane (DMAB) forming Pd(0) nanoparticles (NPs) at room temperature. Pd(0) NPs could be isolated from solution and characterized by ATR-IR, UV-vis, XRD, SEM, TEM, XPS and BET. The results obtained from TEM images reveal the formation of palladium(0) nanoparticles on gamma-alumina, having a mean particle size of 7.1 +/- 2.6 nm. Alumina supported Pd(0) NPs with various metal loadings were employed as catalyst in dehydrogenation of DMAB at room temperature and the sample with 5.0% wt. Pd provides the highest turnover frequency (TOF = 73 h(-1)) at 25.0 +/- 0.5 degrees C. Kinetics of the catalytic dehydrogenation was also investigated depending on Pd concentration and temperature to determine the kinetic parameters of the H-2 release reaction.
Subject Keywords
Hydrogen generation
,
Palladium(0) nanoparticles
,
Heterogeneous catalyst
,
Dimethylamine borane
,
Dehydrogenation
URI
https://hdl.handle.net/11511/41006
Journal
APPLIED SURFACE SCIENCE
DOI
https://doi.org/10.1016/j.apsusc.2019.05.087
Collections
Department of Chemistry, Article
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S. KARABOĞA and S. Özkar, “Nanoalumina supported palladium(0) nanoparticle catalyst for releasing H-2 from dimethylamine borane,”
APPLIED SURFACE SCIENCE
, pp. 433–441, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41006.